UserDao (WMO tables webapp 4.4.0 API)

All Known Implementing Classes:

JdbcUserDao
```
public interface UserDao
```
The data access object representing a User.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`createUser(User user)` Creates a new user.
`void`	`deleteUser(int userId)` Finds and removes the user from the persistence mechanism.
`void`	`deleteUser(String userName)` Finds and removes the user from the persistence mechanism.
`int`	`getUserCount()` Queries the persistence mechanism and returns the number of registries.
`List<User>`	`getUserList()` Requests a List of all registries from the persistence mechanism.
`User`	`lookupUser(int userId)` Looks up and retrieves a user from the persistence mechanism using the userId.
`User`	`lookupUser(String userName)` Looks up and retrieves a user from the persistence mechanism using the userName.
`void`	`updatePassword(User user)` Updates the User's Password
`void`	`updateUser(User user)` Saves changes made to an existing user.

- Method Detail
  - lookupUser
```
User lookupUser(int userId)
```
    Looks up and retrieves a user from the persistence mechanism using the userId.
    
    Parameters:
    userId - The id of the user we are trying to locate (will be unique for each user).
    
    Returns:
    The user represented as a User object.
  - lookupUser
```
User lookupUser(String userName)
```
    Looks up and retrieves a user from the persistence mechanism using the userName.
    
    Parameters:
    userName - The userName of the user we are trying to locate (will be unique for each user).
    
    Returns:
    The user represented as a User object.
  - getUserList
```
List<User> getUserList()
```
    Requests a List of all registries from the persistence mechanism.
    
    Returns:
    A List of registries.
  - getUserCount
```
int getUserCount()
```
    Queries the persistence mechanism and returns the number of registries.
    
    Returns:
    The total number of registries as an int.
  - deleteUser
```
void deleteUser(int userId)
```
    Finds and removes the user from the persistence mechanism.
    
    Parameters:
    userId - The userId in the persistence mechanism.
  - deleteUser
```
void deleteUser(String userName)
```
    Finds and removes the user from the persistence mechanism.
    
    Parameters:
    userName - The userName in the persistence mechanism.
  - createUser
```
void createUser(User user)
```
    Creates a new user.
    
    Parameters:
    user - The user to be created.
  - updateUser
```
void updateUser(User user)
```
    Saves changes made to an existing user.
    
    Parameters:
    user - The existing user with changes that needs to be saved.
  - updatePassword
```
void updatePassword(User user)
```
    Updates the User's Password
    
    Parameters:
    user - The user to whose password we need to update.

Interface UserDao

Method Summary

Method Detail

lookupUser

lookupUser

getUserList

getUserCount

deleteUser

deleteUser

createUser

updateUser

updatePassword